complementary vs synonymous

complementary

adj
  • Of the specific pairings of the bases in DNA and RNA. 

  • Acting as a complement; making up a whole with something else. 

  • Pertaining to pairs of properties in quantum mechanics that are inversely related to each other, such as speed and position, or energy and time. (See also Heisenberg uncertainty principle.) 

noun
  • A complementary colour. 

  • An angle which adds with another to equal 90 degrees. 

synonymous

adj
  • Such that both its forms yield the same sequenced protein. 

  • Having an identical meaning. 

  • Having a similar meaning. 

  • Of, or being a synonym. 

How often have the words complementary and synonymous occurred in a corpus of books? (source: Google Ngram Viewer )